# Vector3 三维向量

Struct

Representation of 3D vectors and points.

This structure is used throughout Unity to pass 3D positions and directions around. It also contains functions for doing common vector operations.

Besides the functions listed below, other classes can be used to manipulate vectors and points as well. For example the Quaternion and the Matrix4x4 classes are useful for rotating or transforming vectors and points.

### Variables变量

• X component of the vector.
向量的X组件。
• Y component of the vector.
向量的Y组件。
• Z component of the vector.
向量的Z组件。
• Access the x, y, z components using , ,  respectively.
使用, , 分别访问组件x, y, z组件。简单来说就是用索引号代替x, y, z组件。
• Returns this vector with a magnitude of 1 (Read Only).
返回向量的长度为1（只读）。
• Returns the length of this vector (Read Only).
返回向量的长度（只读）。
• Returns the squared length of this vector (Read Only).
返回这个向量的长度的平方（只读）。

### Constructors构造器

• Creates a new vector with given x, y, z components.
创建一个新的具有给定x, y, z组件的向量。

### Functions函数

• Multiplies every component of this vector by the same component of scale.
由缩放的相同的组件对应乘以这个矢量的每个组件。
• Makes this vector have a magnitude of 1.
使向量的长度为1。
• Returns a nicely formatted string for this vector.
返回此向量格式化的字符串。

### Class Functions类函数

• Linearly interpolates between two vectors.
两个向量之间的线性插值。
• Spherically interpolates between two vectors.
球形插值在两个向量之间。
• Makes vectors normalized and orthogonal to each other.
使向量规范化并且彼此相互垂直。
• Moves a point current towards target.
当前的地点移向目标。
• Rotates a vector current towards target.
当前的向量转向目标。
• Gradually changes a vector towards a desired goal over time.
随着时间的推移，逐渐改变一个向量朝向预期的目标。
• Multiplies two vectors component-wise.
两个矢量组件对应相乘。
• Cross Product of two vectors.
两个向量的交叉乘积。返回lhs x rhs
• Reflects the vector along the normal.
沿着法线反射向量。
• Dot Product of two vectors.
两个向量的点乘积。
• Projects a vector onto another vector.
投影一个向量到另一个向量。
• Returns the angle in degrees between from and to.
由from和to两者返回一个角度。
• Returns the distance between a and b.
返回a和b之间的距离。
• Returns a copy of vector with its magnitude clamped to maxLength.
返回向量的长度，最大不超过maxLength所指示的长度。
• Returns a vector that is made from the smallest components of two vectors.
返回一个由两个向量的最小组件组成的向量。
• Returns a vector that is made from the largest components of two vectors.
返回一个由两个向量的最大组件组成的向量。